Cylindrical Roller Bearing &lpar;N325 Nj325 NF325 Nup325 Nu325&rpar;Cylindrical roller and race for line contact bearing&period;Load capacity is big&comma; mainly bear radial load&period;Roller and ring guard friction small&comma; suitable for high speed rotation&period;May according to the ring presence of guard&comma; NU&comma; NJ&comma; NUP&comma; N&comma; NF&comma; such as single row cylindrical roller bearings&comma; double row cylindrical roller bearing and NNU&comma; NN and other&period;The bearing inner ring and outer ring is separable structure&period;No guard of cylindrical roller bearing inner ring or outer ring&comma; internal ring and outer ring can be to relative axial movement&comma; so can be used as free end bearing&period;The one side of the inner ring and outer ring with double guard&comma; on the other side of the ring has a single guard cylindrical roller bearing&comma; can withstand a certain degree of axial load in one direction&period;General use of stamping steel cage&comma; cage or copper alloy car system entities&period;But there are also part of the use of polyamide forming keep frame&period;